The OPAx863 devices are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers designed to operate over a power-supply range of 2.7 V to 12.6 V. Consuming only 700 µA per channel, the OPAx863 offers a gain-bandwidth product of 50 MHz, slew rate of 105 V/µs with a voltage noise density of 5.9 nV/√Hz.
The rail-to-rail input stage with 2.7-V supply operation is useful in portable, battery-powered applications. The rail-to-rail input stage is well-matched for gain-bandwidth product and noise across the full input common‑mode voltage range, enabling excellent performance with wide-input dynamic range. The OPAx863 feature a power-down (PD) mode with a PD quiescent current (I Q) of 1.5-µA (maximum) and a turn-on or turn-off time within 6.5-µs using a 3-V supply.
The OPAx863 includes overload power limiting to limit the increase in I Q with saturated outputs, thereby preventing excessive power dissipation in power-conscious, battery-operated systems. The output stage is short-circuit protected, making these devices conducive to ruggedized environments.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | OPAx863 Low-Power, 110-MHz, Rail-to-Rail Input/Output Voltage-Feedback Op Amps datasheet (Rev. J) | PDF | HTML | 14 Jun 2023 |
| Circuit design | Circuit for driving high-voltage SAR ADC with a buffered instrumentation (Rev. A) | PDF | HTML | 20 Sep 2024 | |
| Circuit design | Driving a low-voltage single-ended SAR ADC circuit with high-voltage input (Rev. A) | PDF | HTML | 19 Sep 2024 | |
| Circuit design | Inverting circuit for high-to-low voltage level translation to drive ADC (Rev. A) | PDF | HTML | 19 Sep 2024 | |
| Application brief | Higher accuracy using an external amplifier in ultrasonic flow measurement | 05 Feb 2019 | ||
| Design guide | High-Speed, High-Side Current Sense Reference Design | 19 Jul 2017 | ||
| Application note | ADC Input Protection | 04 Sep 2013 | ||
| User guide | DEM-OPA-SOT-1A User's Guide (Rev. B) | 12 Apr 2012 | ||
| Application note | A Walk Along the Signal Path (High-Speed Signal Path) | 30 Mar 2005 | ||
| Application note | Noise Analysis for High Speed Op Amps (Rev. A) | 17 Jan 2005 |
For additional terms or required resources, click any title below to view the detail page where available.
DEM-OPA-SOT-1A is a demonstration board that evaluates the operation and performance of high-speed, wide-bandwidth operational amplifiers. This unpopulated PC board is compatible with products offered in the small-outline transistor (SOT) DBV package.
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
| SOT-23 (DBV) | 6 | Ultra Librarian |
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Analog Engineer's Calc Installer
General calculator tool for analog design support.